National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pease Air Force Base / Portsmouth (KPSM)

Lat: 43.08°NLon: 70.82°WElev: 102ft.

Mostly Cloudy

16°F

-9°C

Humidity 54%
Wind Speed S 7 mph
Barometer 30.08 in (1019.1 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 5 Dec 7:55 pm EST
Extended Forecast for

New Castle NH

  • Tonight

    Tonight: Mostly cloudy, with a low around 20. Southwest wind around 5 mph becoming calm in the evening.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain and snow showers before 1pm, then a slight chance of rain showers between 1pm and 4pm. Mostly cloudy, with a high near 38. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 38 °F

    Chance Snow
    Showers then
    Slight Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. West wind around 5 mph.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 36. Northwest wind around 5 mph.

    High: 36 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of snow after 11pm. Mostly cloudy, with a low around 20. North wind around 5 mph.

    Low: 20 °F

    Chance Snow

  • Monday

    Monday: Sunny, with a high near 26.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers between 8pm and 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 20. Southwest wind around 5 mph becoming calm in the evening.
Saturday
A chance of rain and snow showers before 1pm, then a slight chance of rain showers between 1pm and 4pm. Mostly cloudy, with a high near 38. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 25. West wind around 5 mph.
Sunday
Partly sunny, with a high near 36. Northwest wind around 5 mph.
Sunday Night
A 50 percent chance of snow after 11pm. Mostly cloudy, with a low around 20. North wind around 5 mph.
Monday
Sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
A chance of snow showers between 8pm and 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of rain after 3pm. Mostly cloudy, with a high near 43.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 32. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 41.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle NH
 43.04°N 70.72°W (Elev. 3 ft)
Last Update:
6:16 pm EST Dec 5, 2025
Forecast Valid:
8pm EST Dec 5, 2025-6pm EST Dec 12, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation